Endothermic reactions take in heat from the surroundings (and make it cooler), exothermic reactions give out heat to the surroundings making it hotter. Get too close to a sparkler and you'll find it is very hot! This is because it is an exothermic reaction.
Heat and light is released, therefore exothermic.
Exothermic
EXOTHERMIC
Exothermic process
Like all burning reactions (with oxygen that is) burning wood is also exothermic.
Solid to gas (sublimation) is endothermic (takes in heat).In other words:A phase change from the solid state to the gas state is endothermic.Sublimation is endothermic (takes in energy).Heat energy must be provided to make it work.When there is a change of state from a solid to a liquid, a solid to a gas, or a liquid to a gas, at a constant temperature, the process is endothermic NOT exothermic. It requires energy to break the intermolecular forces that keep the molecules together, and that reduces the temperature - heat is taken in.
The reaction aluminum underwent during the disaster of Hindenburg was exothermic. It is exothermic because during this disaster it gave off heat.
Dry ice evaporating is endothermic-->+DeltaH A sparkler burning is exothermic--->-DeltaH The reaction that occurs in a chemical cold pack often used to ice athletic injuries is endothermic--->+DeltaH
EXOTHERMIC
exothermic
When something burns it gives off heat. Therefore, it is exothermic.
Exothermic
Exothermic
Exothermic
Exothermic. Burning calories produces energy.
Exothermic process
The burning of natural gas is an exothermic process.
Endothermic means absorbing thermal energy, so of course not. There is no such thing as sugar getting cold when it's burning. Burning sugar is exothermic, meaning it releases heat.
It is a exothermic reaction.